Resource Tree Structure Requirements
Oracle Field Service Routing uses a number of settings to decide how to match activities to resources. Your configuration of these settings can have a significant influence on the routing results. Verify that the resources that should receive the activities are in the same bucket as the activities that you want them to receive.
When organizing the resource tree consider the following limitations:
Routing is started from a Routing Bucket—a resource type with the bucket role.
Routing can only distribute activities from the routing bucket to child resources
Only those child resources are considered for routing that have the Routing can assign activities option selected at the resource type level